Temperature-regulator.



PATENTBD JULY'I, 1903.

N. E. NASH. TEMPERATURE REGULATOR.

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No. 733,329. PATENTED JULY 7, 1903. N. E. NASH. TEMPERATURE REGULATOR.

APPLIOATIONTILBD JUNE 17, 1901.

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Patented July '7, 1903;.

PATENT OFFICE.

NATHAN E. NASH, OF TORONTO, CANADA.

TEMPERATURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 733,329, dated July 7, 1903.

Application filed June 1.7, 1901. Serial No. 64,94=9. (No model.)

To all whont it nuty concern:

Be it known that I, NATHAN E. NASH, a citizen of the United States of America, and a resident of the city of Toronto, in the county of York, Province of Ontario, and Dominion of Canada, have invented certain new and useful Improvements in Regulating-Valves; and I hereby declare that the following is a full, clear, and exact description of the same.

This invention relates to certain new and useful improvements in that class of temperature-regulating appliances in which is employed a pressure-operated valve apparatus; and it relates more particularly to the peculiar construction and operation of a regulating-valve for controlling the flow. of the pressure fluid to the pressure-operated valve to apply the closing motion thereto; and the object of the invention is to construct a regulating-valve highly susceptible to any varia-- tion of temperature and acutely affected thereby and capable of responding easily and quickly when so affected to allow of the flow of the pressure fluid to the pressure-operated range the motor-valve that it will be retained on its seat regardless of the fluid-pressure.

within the regulating-valve when normally checking the flow of the pressure fluid to the pressure-operated valve, as hereinafter more fully set forth, and more particularly pointed out in the claims.

I do not confine the use of the regulatingvalve to any specific purposes, although for explanatory purposes I have shown itused in connection with a radiator.

In the drawings, Figure 1 is a perspective view of the exterior of the regulating-valve. Fig. 2 is a view showing the regulating-valve interposed on the pressure-fluid pipe between the reservoir and the pressure-operated valve, the pressure-operated valve being shown in section and connected to a radiator. Fig. 3

View taken at right angles to Fig. 3, showing the motor-valve in the same position as in Fig. 3. Fig. 5 is a sectional view corresponding to Fig. 3, showing the motor-valve in position to arrest the flow of the pressure fluid. Fig. 6 is a sectional view of the throttle-valve for cutting off the flow of the pressure fluid through the regulating-valve.

Like letters of reference refer to like parts throughout the specification and drawings.

a represents the valve body or casing, in which is formed a motor-chamber I), having its inner end closed by a valve-seat b'a'nd'its outer end by a removable plug 0. Entering the motor-chamber 19 contiguous to the valveseat I) is the inlet-channel d, through which the operating fluid is admitted to the motorchamber, and formed in the motor-chamber b between the inlet-channel d and its outer end is an enlargement or valve-chamber e, the inner edge of which is fitted with a valveseat f. That part of the motor-chamber 1) between the valve-seat fand the outer end is of aslightly-greater diameter than that part between the seatfand -the inner end of the motor-chamber, as shown in Figs. 3, 4, and 5 of the drawings.

Contained within the motor-chamber b is a motor-valve g of varying diameters corresponding to the varying diameters of the motor-chamber and fitted with a beveled shoulder forming subsidiary valve h to engage the Valveseat f. The inner end of the motorvalve g is fitted with a valve-stem '5, operating through a correspondingly-shaped holej, formed through the valve-casing a and valveseat b.

Formed in the valve-casing a is an outlet channel is, communicating with the valvechamber 6 and with the outlet-port d and also with an auxiliary outlet-port Z, formed in the valve-casing, the outlet-channel being of substantially the same width as the valvestem 1' and at a substantially right angle thereto. That portion of the valve stem 2' contained in the outlet-channel 7; when the valve is at rest is fitted with a circumferential groove m to allow the circulation of the pressure fluid around the valve-stem when the motor is in its closed position; Communicating with the outlet-channel 7; is the outlet-port d, to which is connected the pipe leading to the pressureoperated valve.-

Between the outer end of the motor-valve g and the inner end of the removable plug 0 is an accumulating-chamber p, and formed through the motor is a diminutive passage 7", one end of which communicates with the chamber 6 and the other end with the inletchannel (Z when the motor is at rest. Entering the head of the motor is an adjustable screw m, the inner end of which is opposed to the diminutive passage 7" to regulate the volutne of the pressure fluid passing therethrough, it being necessary to restrict the flow of the pressure fluid through the passage 7" to a lesser volume than through the passage q in order to insure the proper action of the valve.

Formed through the valve-body is the accumulating-chamber exhaust-port q, one end of which communicates with the chamber 1) and the other end discharges from the valvebody, and pivoted to the valve-body a contiguous to the outer end of the accumulatingchamber exhaust-port q is a valve 1' to close the same.

Connected to the valve-body is one end of asubstantially U-shaped thermostatic blade 5, the outer end of which is opposed to the pivoted valve 7*, and passing through the free end of the thermostatic blade 5 is an adjustable screwtto regulate the movement of the pivoted valve.

The valve-body a is fitted with an operating-fluid chest a contiguous to the inlet-port (l, and connected to the chest a is one section, 4;, of the operating-fluid pipe, the chest to being fitted with a throttle-valve w to cut off the flow ot' the operating fluid through the valve-body when so desired. Connected to the outlet-port cl is the other section, o, of the i operating-fluid pipe leading to the pressureoperated valve 0. The valve 0 consists of a valve-body 00, having a plunger-valve y opposed to the pipe for the heating agent. Fitted to the top of the valve-body is a diaphragm a". The section 40 of the pressurefluid pipe discharges directly upon the diaphragm a" to force it and the plunger-valve toward the heating-agent pipe, causing the valve y to close the same.

The operation of the invention is as follows: The reservoir 0 is charged with operating fluid at a comparatively high pressure, and this operating fluid when the passage is not interrupted by the thermostatic valve passes from the reservoir to the pressure-operated valve. Assuming that it is desired to maintain the temperature of a room at Fahrenheit, the adjustable screw 15 is set to hold the pivoted valve 7' closed against the open end of the diminutive passage q while the temperature remains at that degree or lower. The pressure fluid enters the thermostatic valve through the inlet-port d and circulating around the valve-stem 71 passes in a small volume through the passage 1* to the accumulating-chamber 1) and being unable to escape through the passage q accumulates therein and provides a sufflcient pressure against the head of the motor to hold it firmly in its closed position, shutting off the com munication between the inlet or outlet ports and retaining the motor on its seat regardless of the fluid-pressure against the valvestems. When the temperature rises above the normal degree, the thermostatic blade expands and relieves the pivoted valve 1* of the pressure of the adjustable screw 25, allowing the valve to be opened by and permit of the escape of the operating fluid from the accumutating-chamber p through the passage q. \Vheu the head of the motor is relieved of the fluid-pressure, the operating fluid entering the motor-chamber through the inletport d moves the motor-valve longitudinally in the motor-chamber, bringing it into the position shown in Figs. 3 and 4, the motor being between the channel 6 and outer edge of the motor-chamber. When the motor is in this position, the operating fluid passes from the inlet-port through the motor-chamber to the channel 6 and then into the outlet-channel 70, from which it escapes through the outlet-port d and entering the pipe '2) passes to the pressure-operated valve 0, applying sufficient pressu re to the diaphragm a to force it toward the pipe zand cause the valve to cut off the flow of the heating agent from the pipe .2 to the radiator. At this time the inner end of the passage 0 is opposed to the channel e and a very small volume of the operating fluid passes through the passage to the chamber 19 and escapes from the chamber p through the passage q. Vhen the temperature has again fallen to the normal degree, the thermostatic blade 3 contracts, bringing the adjustable screw 2f into engagement with the pivoted valve 1', causing the valve to close the passage q, and the operating fluid having no egress through the passage q again fills the accumulating-chamberp and applies sufiicient pressure to the head of the motor to cause it to return to its normal or closed position, as shown in Fig. 5 of the drawings, holding the motor firmly on its seat regardless of the fluid-pressure against the valvestem. The flow of the operating fluid from the inlet to the outlet ports is now interrupted and continues so until the temperature of the room has again risen above the normal degree, when the above-described movement of the valve is repeated. To effect the opening of the pressure-operated valve, it is necessary to relieve it of the pressure of the operating fluid remaining in the outlet-channel after the motor has returned to its normal position, and this relief is accomplished by fitting the outlet-channel 7r with an escape-port l, the pressure fluid escaping from the pressureoperated valve 0 through the pipe 1: to the ICC channel and circulating around the circumferential channel on in the valve-stem escapes through the port Z. Then steam is used as the operating fluid, this opening can be employed for the drainage of the condensation. lieved of the pressure of the operating fluid, the heating agent opens the plunger-valve and continues its circulation through the radiator or other heat-distributing appliance until again checked by the action of the regulating-valve.

It is possible to set the apparatus to operate at any predetermined degree of temperature, and it is also possible to operate the thermostatic valve either by steam or other fluid-pressure and to use the apparatus in, conjunction with heating appliances operated either by steam or hot water.

I claim- 1. In a regulating-valve, the combination of a casing having a motor-chamberin the upper portion thereof, inlet and outlet channels leading to the motor-chamber, a motor-valve located in the motor-chamber controling the inlet and outlet channels and having a duct in communication with the inlet-channel, an accumulating-chamber supplied by the duct at the upper end of the motor-chamber, an outletduct for the accumulating-chamber leading from the upper end of the accumulating-chamber to the outside, and a valve for controlling the outlet-duct.

2. In a regulating-valve, the combination of a casing having a motor-chamber in the upper portion thereof, inlet and outlet channels leading to the motor-chamber, a motorvalve located in the motor-chamber controlling the inlet and outlet channels and having a duct in communication With the inlet-channel, an accumulating-chamber supplied by the duct at the upper end of the motor-chamber, an outlet-duct for the accumulatingchamber leading from the upper end of the accumulating-chamber to the outside, a valve for controlling the outlet-duct, and a thermostatically-operated valve to control the outlet-duct.

3. In a regulating-valve, the combination of a casing, having a motor-chamber therein, inlet and outlet channels communicating with the motor-chamber, an outlet-duct leading from the motor-chamber to the outside of the casing; a supplemental outlet-channel leading from the main outlet-channel to the outside of the casing, a motor-valve movable in the motor-chamber, having a duct communicating with the inlet-channel and outlet-duct, said motor-valve controlling the com mnnication between the inlet and outlet channels and the passage through the supplemental outlet-channel, a pivoted valve to control the outlet-duct, and means to control the valve by contraction and expansion, substantially as specified.

4. In a regulating-valve, the combination of a casing, having a motor-chamber therein,

When the diaphragm has been re-' inlet and outlet channels communicating with the motor-chamber, an outlet-duct leading from the motor-chamber to the outside of the casing, a supplemental outlet-channel leading from the main outlet-channel to the outside, a motor-valve movable in the motor chamber controlling the communication between the inlet and outlet channels and the passage through the supplemental outletchannel and having a duct communicating with the inlet-channel and outlet-duct, a pivoted valve to control the outlet-duct; a U- shaped thermostat having one end connected to the casing and the other free and means carried by the free end of the thermostat to control the pivoted valve, substantially as specified.

5. In a heat-regulating valve, the combination of a casing, having a central channel therethrough of varying diameters, an inletchannel leading to the motor-chamber, an outlet-channel leading from the motor-chamber on the opposite side from the inlet-channel, an outlet-duct leading from the motorchamber to the outside of the casing; and an exhaust channel leading from the outletchannel to the outside; a motor-valve movable in the motor-chamber and having its stem movable in the exhaust-channel, said motor-valve controlling the inlet and outlet channels and its stem the exhaust-channel; a pivoted valve to control the outlet-duct; a U shaped thermostat having one end secured to the casing and the other free, and a setscrew carried by the free end of the thermostat to adj ustably control the pivoted valve, substantially as specified.

6. In a heat-regulating valve, the combination of a casing, having a central channel therethrough and forming a motor-chamber, an inlet-channel leading to the motor-chamber, an outlet-channel leading from the motor-chamber on the opposite side from the inlet-channel, an outlet-duct leading from the motor-chamber to the outside of the casing; an exhaust-channel leading from the outletchannel to the outside, a motor-valve movable in the motor-chamber and havingits stem movable in the exhaust-channel; said motorvalve controlling the inlet and outlet channels and its stem the exhaust-channel, and having a duct communicating with the inletchannel and outlet-duct, a pivoted valve to control the outlet-duct and means to control the pivoted valve as said means contracts and expands, substantially as specified.

7. In a regulating-valve, the combination of a casing, provided with a central chamber therethrough, of varying diameters forming a motor-chamber, an inlet-channel leading to the motor-chamber, an outlet-channel leading from the motor-chamber on the opposite side from the inlet-channel, an outlet-duct leading from the motor-chamber to the outside of the casing, and an exhaust-channel leading from the outlet-channel to the outside, a motor-valve movable in the motor-chamber, hav- IIO ing a duct communicating with the inletchannel and outlet-duct, and having its stem the motor-chamber, an outlet-channel leading.

from the motor-chamber on the opposite side from the inlet-channel, an outlet-duct lead ing from the motor-chamber to the outside of the casing; an exhaust-channel leading from the outlet-channel to the outside, a motorvalve movable in the motor-chamberand having its stem movable in the exhaust-channel, said motor-valve controlling the inlet and outlet channels and its stem the exhaust-channel, and having a duct communicating with the inlet-channel and outlet-duct, a pivoted valve to control the outlet-duct; a U-shaped thermostat having one end secured to the casing and the other free, and a setscrew carried by the free end of the thermostat, to adjustably control the pivoted valve, substantially as specified.

Toronto April 3, 1901.

N. E. NASH.

In presence of- O. H. RIcHEs, FLORENCE BROOK. 

